TM 55-2210-223-12TO 45A2-2-14-414-23. ENGINEER'S HEATER ASSEMBLYThis task covers: a.Testb.Removalc.Disassemblyd.Cleaninge.Inspectionf.Repairg.Assemblyh.InstallationINITIALSETUP:ToolsMaterial/PartsTool kit SC4940-97-CL-E16Dry-cleaning solvent (Item 20, Appendix E)TESTWARNING· Remove rings, bracelets, wristwatches, and neckchains before working around the locomotive.Jewelry can catch on equipment and cause injury,or may short across an electrical circuit and causesevere burns or electrical shock.· High voltage is used in the operation of equipment.Do not be misled by the term LOW VOLTAGE.Potentials as low as 50 volts may cause death.1.Open electrical equipment cabinet and set battery switch to OPEN. Set #1 heater switch to OFF.2.Test switches and breakers for serviceability prior to disassembly of heater. Check resistor for continuity.4-48